Sumandora

I wanted to use layered mappings like this: ```groovy mappings loom.layered { officialMojangMappings() mappings("net.fabricmc:yarn:$project.yarn_mappings:v2") } ``` Basically using mojmap as fallback for fields and methods, which don't have yarn names,...

This PR turns this:  into this:  The main issue is that something like #8362 is not merged. I initially wanted to expand all tabs by default, however this...